BY A. B. WALK0M. 185 



Sphenopteris erecta which resemble bhe sterile pin nse of Conio- 

 pteris hymenophylloides ; it is possible that the two may be 

 identical, but no fertile examples have yet been found in the 

 Burrum form. 



Pittman* has recorded the occurrence of a Sphenopteris in the 

 Clarence Series, and it may possibly be portion of a Goniopteris. 



The specimens figured are Nos. L.10, L.26, and L.33 in Mr. 

 Mitchell's collection. 



CLADOPHLEBIS a lsi i; a lis (Morris). 

 (Plate vii., fig.l). 

 For full synonymy, see Rec. Geol. Survey Victoria, Vol. j., 



p.m. 



"Frond bipinnate, pinnae oblique. The pinnules are slightly 

 falcate or straight, attached by the whole base and decurrent: 

 apex generally rather acute. Well-defined midrib, usually per- 

 sisting to apex; secondary veins make an acute angle with the 

 midrib and bifurcate once or twice before reaching the margin; 

 the margin is entire or slightly serrate. Fertile fronds have the 

 pinnules somewhat narrower and inclined to be straighter than 

 the sterile. Sori in two rows parallel to the midrib; the sori are 

 close together and occupy nearly the whole of the under surface. 

 each one is composed of four (rarely five) sporangia."! 



This description is based on material from the Ipswich and 

 Walloon Series of Queensland, the latter being, 1 believe, iden- 

 tical with the Clarence Series of north-eastern New South Wales. 

 This species is of such common occurrence in the Australian 

 Mesozoic strata, and has been frequently discussed at length, so 

 it is not necessary to go into further detail here. 



The specimens from Bexhill consist of impressions which show 

 the general outlines clearly, ami. in some cases, the venation; 

 none of them represent fertile fronds. They are identical with 

 Queensland and Victorian examples of the species, though per- 

 haps somewhat closer to the former, and not quite so large as 

 the Victorian specimens. 



* Ann. Rept. Dept. Mines. X. S. Wale.-, for L880, p.'-!44. 

 I Queensland Geol. Survey, Pub. 2~>~, 1917, p.-'!. 



